CN105757252A - Anti-deflection follow-up seal of low-speed device - Google Patents
Anti-deflection follow-up seal of low-speed device Download PDFInfo
- Publication number
- CN105757252A CN105757252A CN201610261628.6A CN201610261628A CN105757252A CN 105757252 A CN105757252 A CN 105757252A CN 201610261628 A CN201610261628 A CN 201610261628A CN 105757252 A CN105757252 A CN 105757252A
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- China
- Prior art keywords
- ring
- bearing
- stationary
- low
- beat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3284—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structure; Selection of materials
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
Abstract
The invention relates to the technical field of mechanical seals, in particular to an anti-deflection follow-up seal of a low-speed device. The seal comprises a flange, a static part and a rotating part. The rotating part comprises a shaft sleeve and a movable ring assembly located on the shaft sleeve. The static part comprises a sealed cavity and a fixed ring assembly fixedly connected with the sealed cavity. A bearing is fixed between the static part and the rotating part. The static part is connected with the flange flexibly through an elastic sealing assembly. The movable ring assembly and the fixed ring assembly for sealing are connected with an inner ring and an outer ring of a bearing indirectly respectively to interact through the bearing, and therefore a movable ring and a fixed ring are kept in high parallelism all the time, the eccentricity caused by eccentricity of a rotating shaft, the inclination of a base and the like can be effectively compensated for, and the service life of the seal in the large deflection working situation is effectively prolonged.
Description
Technical field
The present invention relates to technical field of mechanical, be specifically related to a kind of anti-beat of low-speed device and follow sealing.
Background technology
Owing to stirring at low speed device structure is complicated, molectron is many, and cumulative errors are big, cause that precision is relatively low, spindle eccentricity, swings big, main shaft and sealed base plane out of plumb, cause the sealed product that dry gas seals, mechanical seal etc. are outstanding, being difficult to use normally in this kind equipment, thus causing dielectric leakage, or material is contaminated, increase maintenance and the cost of overhaul of this kind equipment, greatly reduce economic benefits.
Summary of the invention
The problem that it is an object of the invention to solve the abrasion of low-speed device axle eccentricities lower seal friction pair, it is provided that a kind of anti-beat, the anti-beat of low-speed device easily installed follow sealing.
In order to achieve the above object, the technical solution used in the present invention is: the anti-beat of low-speed device follows sealing, including ring flange, stationary part and turn part, described turn part includes axle sleeve and the moving ring assembly being positioned on axle sleeve, described stationary part includes annular seal space and fixes the static components being connected with annular seal space, it is fixed with bearing between described stationary part and turn part, is flexibly connected by elastic packing assembly between described stationary part and ring flange.
The anti-beat of low-speed device as above follows sealing, further illustrate for, described moving ring assembly includes spring base, side medium rotating ring and atmospheric side rotating ring, described spring base is fixing with axle sleeve to be connected, described side medium rotating ring and atmospheric side rotating ring lay respectively at the axial two ends of spring base, are respectively equipped with throw-out collar and elastic component between side medium rotating ring and spring base, between atmospheric side rotating ring and spring base；Described static components includes side medium stationary ring, side medium stationary seat and atmospheric side stationary ring, and described side medium stationary ring is positioned on side medium stationary seat, and side medium stationary seat is fixing with annular seal space to be connected, and atmospheric side stationary ring is connected with annular seal space.
The anti-beat of low-speed device as above follows sealing, further illustrates and is connected into, described bearing inner race and axle sleeve are fixing, and described bearing outer ring is fixedly connected with bearing block, and described bearing block is fixed by bolt and annular seal space and is connected.
The anti-beat of low-speed device as above follows sealing, further illustrate into, described axle sleeve is provided with locking nut, and locking nut is positioned at bearing one end near air, and described locking nut is used for compressing bearing.
The anti-beat of low-speed device as above follows sealing, further illustrate into, described axle sleeve is provided with hold-fast ring, and described hold-fast ring is positioned at locking nut one end away from bearing, is provided with stop pin between described hold-fast ring and locking nut.
The anti-beat of low-speed device as above follows sealing, further illustrate into, described elastic packing assembly is corrugated tube, and described corrugated tube two ends are fixing with between stationary part and annular seal space respectively to be connected.
The anti-beat of low-speed device as above follows sealing, further illustrate into, described elastic packing assembly is rubber-spring complex, and described rubber-spring complex two ends are fixing with between stationary part and annular seal space respectively to be connected.
The invention has the beneficial effects as follows:
1) by arranging bearing in turn part and stationary part, realize being indirectly connected with between moving ring assembly and static components, interaction between the two is realized by bearing, static components is made to pass through bearing, moment and rotating shaft keep the state followed, so that the dynamic and static ring sealing end face moment keeps the good depth of parallelism, can effectively adapt to by rotating shaft eccentric relative to base, pedestal is relative to deviations such as axes of rotation skew, cause rotating shaft operating beat, avoid the quick eccentric wear of sealing pair to the full extent, the generation of the rough sledding such as unexpected contact, seal face fluid cushion even film layer can be effectively ensured, effectively extend the service life being sealed under big beat operating mode.
2) original location and installation mode relying on stationary part location turn part is changed, thoroughly break away from the dry gas seals application dependence to high accuracy rotating shaft, high level degree pedestal, reduce equipment precision requirement, expand dry gas seals application subject range, bring to dry gas seals extensive use on big beat equipment and greatly facilitate.
3) stationary part is connected by elastic packing assembly and ring flange, and then it is connected on equipment base, and carry out anti-rotation by elastic packing assembly, make stationary part not with axis of rotation, and relying on elastic packing assembly to compensate, without adjusting the horizontality of ring flange lower contact surface again during installation, no matter which kind of mounting means low-speed device adopts, all realizing installation in time, it is convenient to install.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram.
In figure: 1, ring flange；2, elastic packing assembly；3, side medium stationary seat；41, side medium stationary ring；42, atmospheric side stationary ring；51, side medium rotating ring；52, atmospheric side rotating ring；6, spring base；7, annular seal space；8, axle sleeve；9, bolt；10, bearing block；11, bearing；12, locking nut；13, hold-fast ring；14, stop pin；15, rotating shaft.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present invention is further elaborated.
As shown in Figure 1, a kind of anti-beat of low-speed device provided by the invention follows sealing, lower section is side medium, it is arranged above atmospheric side, this sealing includes ring flange 1, stationary part and turn part, described turn part includes axle sleeve 8 and the moving ring assembly being positioned on axle sleeve 8, described moving ring assembly includes spring base 6, side medium rotating ring 51 and atmospheric side rotating ring 52, described spring base 6 is fixing with axle sleeve 8 to be connected, described side medium rotating ring 51 and atmospheric side rotating ring 52 lay respectively at the axial two ends of spring base 6, between side medium rotating ring 51 and spring base 6, throw-out collar and elastic component it is respectively equipped with between atmospheric side rotating ring 52 and spring base 6；Described stationary part does not rotate with rotating shaft 15, turn part rotates with rotating shaft 15, stationary part includes annular seal space 7 and the static components that be connected fixing with annular seal space 7, described static components includes side medium stationary ring 41, side medium stationary seat 3 and atmospheric side stationary ring 42, described side medium stationary ring 41 is positioned on side medium stationary seat 3, side medium stationary seat 3 is fixing with annular seal space 7 to be connected, and atmospheric side stationary ring 42 is connected with annular seal space 7, and namely annular seal space 7 is also used for the stationary seat of atmospheric side stationary ring 42.
Bearing 11 it is fixed with between described stationary part and turn part, bearing 11 inner ring is fixing with axle sleeve 8 to be connected, bearing 11 outer ring is fixing with annular seal space 7 to be connected, it is also possible to fixed connection shaft bearing 10 on bearing 11 outer ring, makes fixing between bearing block 10 with annular seal space 7 connection by bolt 9.Be equivalent to turn part and be fixed on bearing 11 inner ring, stationary part is fixed on bearing 11 outer ring, during main shaft generation beat, under the effect of bearing 11, stationary part and turn part glance off simultaneously, so that the dynamic and static ring moment keeps the good depth of parallelism, the bias that energy effective compensation is produced by rotating shaft 15 beat, avoid the quick eccentric wear of friction pair to the full extent, the generation of the fortuitous events such as unexpected contact, seal face fluid cushion even film layer can be effectively ensured, effectively extend the service life being sealed under big beat operating mode.Described axle sleeve 8 is provided with locking nut 12, and locking nut 12 is positioned at bearing 11 one end near air, and described locking nut 12 is used for pushing against bearing, and namely locking nut 12 pushes against with the inner ring of bearing 11, it is possible to prevent loosening of bearing 11 further.Described axle sleeve 8 is provided with hold-fast ring 13, and described hold-fast ring 13 is positioned at locking nut 12 one end away from bearing 11, is provided with stop pin 14 between described hold-fast ring 13 and locking nut 12, and stop pin 14 plays the effect preventing locking nut from loosening.
Being flexibly connected by elastic packing assembly 2 between described stationary part and ring flange 1, namely one end of elastic packing assembly 2 is connected with the side medium stationary seat 3 in stationary part, and the other end is connected with ring flange 1, it is possible to be connected by screw, it is also possible to by being welded to connect.Described elastic packing assembly 2 can adopt corrugated tube or rubber-spring complex.Stationary part is flexibly connected by elastic packing assembly 2 and ring flange 1, and then it is connected on equipment base, and carry out anti-rotation by elastic packing assembly 2, make stationary part not with axis of rotation, and rely on elastic packing assembly 2 to compensate, without adjusting the horizontality of ring flange 1 lower contact surface again during installation, regardless of which kind of mounting means of low-speed device, all realizing installation in time, it is convenient to install.
The present invention is not limited to examples detailed above, and in claims limited range of the present invention, various deformation or amendment that those skilled in the art can make without creative work are all protected by this patent.
Claims (7)
1. the anti-beat of low-speed device follows sealing, including ring flange, stationary part and turn part, described turn part includes axle sleeve and the moving ring assembly being positioned on axle sleeve, described stationary part includes annular seal space and fixes the static components being connected with annular seal space, it is characterized in that: be fixed with bearing between described stationary part and turn part, flexibly connected by elastic packing assembly between described stationary part and ring flange.
2. the anti-beat of low-speed device according to claim 1 follows sealing, it is characterized in that: described moving ring assembly includes spring base, side medium rotating ring and atmospheric side rotating ring, described spring base is fixing with axle sleeve to be connected, described side medium rotating ring and atmospheric side rotating ring lay respectively at the axial two ends of spring base, are respectively equipped with throw-out collar and elastic component between side medium rotating ring and spring base, between atmospheric side rotating ring and spring base；Described static components includes side medium stationary ring, side medium stationary seat and atmospheric side stationary ring, and described side medium stationary ring is positioned on side medium stationary seat, and side medium stationary seat is fixing with annular seal space to be connected, and atmospheric side stationary ring is connected with annular seal space.
3. the anti-beat of low-speed device according to claim 1 follows sealing, it is characterised in that: described bearing inner race is fixing with axle sleeve to be connected, and described bearing outer ring is fixedly connected with bearing block, and described bearing block is connected by bolt and annular seal space are fixing.
4. the anti-beat of low-speed device according to claim 3 follows sealing, it is characterised in that: described axle sleeve is provided with locking nut, and locking nut is positioned at bearing one end near air, and described locking nut is used for compressing bearing.
5. the anti-beat of low-speed device according to claim 4 follows sealing, it is characterised in that: described axle sleeve is provided with hold-fast ring, and described hold-fast ring is positioned at locking nut one end away from bearing, is provided with stop pin between described hold-fast ring and locking nut.
6. the anti-beat of low-speed device according to claim 1 follows sealing, it is characterised in that: described elastic packing assembly is corrugated tube, and described corrugated tube two ends are fixing with between stationary part and annular seal space respectively to be connected.
7. the anti-beat of low-speed device according to claim 1 follows sealing, it is characterised in that: described elastic packing assembly is rubber-spring complex, and described rubber-spring complex two ends are fixing with between stationary part and annular seal space respectively to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610261628.6A CN105757252A (en) | 2016-04-26 | 2016-04-26 | Anti-deflection follow-up seal of low-speed device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610261628.6A CN105757252A (en) | 2016-04-26 | 2016-04-26 | Anti-deflection follow-up seal of low-speed device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105757252A true CN105757252A (en) | 2016-07-13 |
Family
ID=56325770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610261628.6A Pending CN105757252A (en) | 2016-04-26 | 2016-04-26 | Anti-deflection follow-up seal of low-speed device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105757252A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0947747A2 (en) * | 1998-04-01 | 1999-10-06 | Nippon Pillar Packing Co. Ltd. | Shaft seal apparatus |
| JP2000097349A (en) * | 1998-09-25 | 2000-04-04 | Eagle Ind Co Ltd | Bellows type mechanical seal |
| CN201795042U (en) * | 2010-08-04 | 2011-04-13 | 安徽亚兰密封件有限公司 | Mechanical sealing device with positioning seat |
| CN102537362A (en) * | 2010-12-10 | 2012-07-04 | 丹东波纹管密封有限公司 | Energy-storing type compensator of stirrer |
| JP2014098492A (en) * | 2014-02-28 | 2014-05-29 | Ikebukuro Horo Kogyo Kk | Mechanical seal |
| CN203796939U (en) * | 2014-03-14 | 2014-08-27 | 成都一通密封有限公司 | Dry gas seal device for low-speed reaction kettle in medical industry |
| CN204082637U (en) * | 2014-08-27 | 2015-01-07 | 中国航天科技集团公司烽火机械厂 | Turbine pump and bellow seal thereof |
| CN105465372A (en) * | 2016-01-26 | 2016-04-06 | 成都一通密封股份有限公司 | Large-deflection self-adaptive seal for low-speed equipment |
| CN205715672U (en) * | 2016-04-26 | 2016-11-23 | 成都一通密封股份有限公司 | The anti-beat of low-speed device follows sealing |
-
2016
- 2016-04-26 CN CN201610261628.6A patent/CN105757252A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0947747A2 (en) * | 1998-04-01 | 1999-10-06 | Nippon Pillar Packing Co. Ltd. | Shaft seal apparatus |
| JP2000097349A (en) * | 1998-09-25 | 2000-04-04 | Eagle Ind Co Ltd | Bellows type mechanical seal |
| CN201795042U (en) * | 2010-08-04 | 2011-04-13 | 安徽亚兰密封件有限公司 | Mechanical sealing device with positioning seat |
| CN102537362A (en) * | 2010-12-10 | 2012-07-04 | 丹东波纹管密封有限公司 | Energy-storing type compensator of stirrer |
| JP2014098492A (en) * | 2014-02-28 | 2014-05-29 | Ikebukuro Horo Kogyo Kk | Mechanical seal |
| CN203796939U (en) * | 2014-03-14 | 2014-08-27 | 成都一通密封有限公司 | Dry gas seal device for low-speed reaction kettle in medical industry |
| CN204082637U (en) * | 2014-08-27 | 2015-01-07 | 中国航天科技集团公司烽火机械厂 | Turbine pump and bellow seal thereof |
| CN105465372A (en) * | 2016-01-26 | 2016-04-06 | 成都一通密封股份有限公司 | Large-deflection self-adaptive seal for low-speed equipment |
| CN205715672U (en) * | 2016-04-26 | 2016-11-23 | 成都一通密封股份有限公司 | The anti-beat of low-speed device follows sealing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160713 |
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| RJ01 | Rejection of invention patent application after publication |